Depreciation is an accounting treatment for spreading the costs of the annual wear and tear.Flip it around.

This is a flushing agent that causes the roaches to flush from their hiding places, run into the freshly sprayed chemical (I always prefered the chemical Demand CS with an active ingredient of Lambda-Cyhalothrin)It may take 2 or even 3 treatments to eradicate the problem and is not cheap if done right.

The first treatment cost me $925.

It would appear from your post that 100% of the property that you are selling is your primary residence, so if this is the case, the sale will not qualify for 1031 Exchange treatment since it was not held for rental, investment or use in a business.I second the comments above, if you can wait for an additional six (6) months and pass the 2 year mark, then you get $250,000 in tax free gain (as a single person).

You need one year for Long term capital gain treatment 

That being said, there are key indicators that allow investors to speculate on what will happen next in the market.The last market crash around 2007 can be visualized below.

Just be aware of the tax treatment of short-term rentals (average rental period of 7 days or less) vs "traditional" rentals, especially if substantial services are involved. 

Really, really bad experience and treatment.

Once you exceed the three (3) year window the property will no longer qualify for the 121 Exclusion, but it will be considered 100% rental/investment property at that time and will qualify for tax-deferred exchange treatment under Section 1031 of the Internal Revenue Code. 

On the other hand, the plaster walls are less likely to allow the urine to soak into them (in the case of spraying) and, if needed, the treatment with the oil based Kiltz should seal any odors in.Gail